websocketd: SSL connection fails on Windows

By running the command: websocketd.exe --port=8080 --ssl --sslcert="localhost.crt" --sslkey="localhost.key" cscript /nologo count.vbs and opening the count.hmtl page at: https://localhost:8080/count.html connection fails with error: TLS handshake error from 127.0.0.1:49246: CryptAcquireContext: Invalid Signature.

Tested on Windows 7x64 using the count.vbs and count.html provided in examples and websocketd.exe version 0.2.11. Tried both a certificate signed from a CA and a self-signed certificate installed in certmgr.msc.

The above example worked as expected on Linux with both certificates.

Any ideas what can be the cause of this issue and how it can be fixed?